Question

efectuati calculele:
a)80+{3240+1080:[960-3600:(320-80:4)*65]*60}:180
b) 17*50-6*{170-3*[50+(246-6*16):30+15*13]:25}
c)2*{2*35+12[362-3*(112-3*6)+2*15]:80+50}-6*36

Answer 1

a) 80+{3240+1080:[960-3600:(320-80:4)*65]*60}:180
= 80+{3240+1080:[960-3600:(320-20)*65]*60}:180
= 80+[3240+1080:(960-3600:300*65)*60]:180
= 80+[3240+1080:(960-12*65)*60]:180
= 80+[3240+1080:(960-780)*60]:180
= 80+(3240+1080:180*60):180
= 80+(3240+6*60):180
= 80+(3240+360):180
= 80+3600:180
= 80+20
= 100

b) 17*50-6*{170-3*[50+(246-6*16):30+15*13]:25}
= 17*50-6*{170-3*[50+(246-96):30+15*13]:25}
= 17*50-6*[170-3*(50+150:30+15*13):25]
= 17*50-6*[170-3*(50+5+195):25]
= 17*50-6*(170-3*250:25)
= 17*50-6*(170-30)
= 17*50-6*140
= 850-840
= 10

c) 2*{2*35+12*[362-3*(112-3*6)+2*15]:80+50}-6*36
= 2*{2*35+12*[362-3*(112-18)+2*15]:80+50}-6*36
= 2*[2*35+12*(362-3*94+2*15):80+50}-6*36
= 2*[2*35+12*(362- 282+30):80+50]-6*36
= 2*( 2*35+12*110:80+50)-6*36
= 2*(70+1320:80+50)-6*36
= 2*(70+16.5+50)-6*36
= 2*136.5-6*36
= 273- 216
= 57